DmC: Devil May Cry through the Capcom store.
Of course, you don't have to wear the pendant. You could just hang it somewhere, or lay it on a table near you while you silently prepare a sandwich during a Devil May Cry 4 installation. Yeah, that's right, we're bringing that gag back.
DmC: Devil May Cry launches on January 15, 2013 for the PS3 and Xbox 360; and on January 25 for the PC.